Cable detection device

Abstract

The invention relates to the technical field of cable detection, and discloses a cable detection device which comprises a take-up box, a take-up cabin arranged in an inner cavity of the take-up box and transmission cabins located on the left side and the right side of the take-up cabin, and a take-up roller is rotationally arranged in the take-up cabin. The two ends of the take-up roller extend into the left transmission cavity and the right transmission cavity correspondingly and are in transmission connection with a reversing assembly arranged in the take-up box, a bearing frame and a swing assembly arranged above the bearing frame in a sliding mode are installed on the front side of the take-up box, and an acceleration assembly, a detection assembly and a marking assembly which are located right in front of the take-up box are further installed on the bearing frame. The cable cleaning device is used for cleaning, detecting and marking cables. The cable crack point position can be efficiently detected and accurately marked, and the detection efficiency and the use convenience are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and more particularly to a cable detection device. Background Art

[0002] Cables are usually rope-like cables made of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outside is covered with a highly insulating covering layer, which has the characteristics of internal power supply and external insulation. In order to further enhance the structural strength and durability of the cable, a metal layer is usually added to the outermost layer of the cable to make an armored cable. This metal layer can be a steel belt, a steel wire braided mesh or other forms of metal structure. They can effectively resist external pressure, tension and impact, and protect the internal wires from damage. In addition, the armor can also improve the cable's anti-electromagnetic interference performance, making it suitable for more complex and harsh environmental conditions.

[0003] However, cables used in outdoor construction environments are often long, which makes them inevitably experience frequent dragging and movement in daily use. This long-term physical stress may cause the metal protective layer of the armored cable to break or shatter, thereby causing a series of cable safety issues. In order to ensure the stable operation of the power system and the safety of the staff, when suspected damage to the armored cable is found, the specific rupture position must be located promptly and accurately. However, in reality, there is usually a large amount of sludge or other impurities attached to the surface of the cable. It is very inconvenient to judge the damage point only by visual inspection. Traditional detection methods are inefficient in this case and the accuracy is difficult to guarantee.

[0004] Therefore, the present invention proposes a cable detection device to achieve efficient detection and accurate marking of the cable crack point position, thereby improving detection efficiency and convenience of use. Summary of the invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a cable detection device to solve the problem existing in the above-mentioned background technology of how to achieve efficient detection and accurate marking of the cable crack point position, thereby improving the detection efficiency and convenience of use.

[0006] The present invention provides the following technical solutions: a cable detection device, comprising a wire take-up box, wherein a wire take-up cabin and transmission cabins located on the left and right sides of the wire take-up cabin are arranged in the inner cavity of the wire take-up box, a wire take-up roller is rotatably arranged in the wire take-up cabin, and the two ends of the wire take-up roller extend into the left and right transmission cavities respectively and are transmission-connected to the reversing components arranged therein, a bearing frame and a swinging component slidably arranged above the bearing frame are installed on the front side of the wire take-up box, and a speed-up component, a detection component and a marking component located right in front of the wire take-up box are also installed on the bearing frame to respectively perform cleaning operations, detection operations and marking operations on the cable; The reversing assembly includes a plane gear, and the left and right plane gears can rotate toward or away from each other. The end faces of the plane gears are both provided with tooth segments and toothless segments, and the left and right plane gears can alternately transmit the swing assembly; the speed-up assembly includes a gear housing, an inner gear ring, planetary gears and a sun gear tube, wherein the gear housing is equipped with an inner gear ring, and the sun gear tube is provided with a central rotation of the inner gear ring, and there are circumferentially distributed planetary gears between the inner gear ring and the sun gear tube, and the planetary gears are meshed with the inner and outer layers of the sun gear tube and the inner gear ring at the same time, and the planetary gears are arranged with a fixed axis; The detection component includes an assembly ring, an elastic annular air tube, an air pressure sensor and a pressure-regulating air pump, wherein the assembly ring is aligned with the rear wall opening of the gear housing, the interior of the assembly ring is equipped with an elastic annular air tube wrapped around the surface of the cable, the air pressure sensor and the pressure-regulating air pump are assembled on the outer wall of the assembly ring, and the air pressure detection end of the air pressure sensor and the air supply end of the pressure-regulating air pump respectively pass through the assembly ring and extend into the elastic annular air tube, and the elastic annular air tube is filled with constant pressure gas.

[0007] Furthermore, the reversing assembly also includes a transmission shaft, a bevel gear and a U-shaped frame, wherein the transmission shaft is rotatably sleeved on the U-shaped frame, the ends of the transmission shaft close to the take-up roller are equipped with bevel gears, and the two bevel gears on the same side are vertically meshed, and the end of the transmission shaft away from the take-up roller is equipped with a flat gear.

[0008] Furthermore, the supporting frame includes a main frame beam and an auxiliary frame seat installed on the front side thereof, wherein the main frame beam is fixedly connected to the front wall of the wire receiving box to carry the swing component, the speed-up component, the detection component and the marking component.

[0009] Furthermore, the swing assembly includes a front rack, a rear rack, a connecting rod, a slider and a wire tube, wherein the front rack and the rear rack are arranged front to back and are slidably arranged above the main frame beam, and the front rack and the rear rack are fixedly connected by a connecting rod, the top end of the connecting rod is assembled with a slider slidably arranged in a slide groove on the front wall of the wire collection box, and a wire tube is installed in the middle of the slider.

[0010] Furthermore, the marking assembly includes an electric push rod, a U-shaped rod, a color marking block and a fixing frame, wherein the electric push rod is assembled on the top of the fixing frame, the electric push rod is installed on the auxiliary frame seat through the fixing frame, the telescopic end of the electric push rod is equipped with a U-shaped rod, and the bottom end of the U-shaped rod is detachably installed with a color marking block.

[0011] Furthermore, the speed-up component also includes a rotating shaft and a planetary carrier, wherein the rotating shaft is fixedly connected to the auxiliary frame seat, and the planetary gear is rotatably sleeved on the end of the rotating shaft, and the planetary carrier is installed between the rotating shafts, and the rotating connection part between the gear housing and the auxiliary frame seat slot is provided with a channel for discharging cleaning materials, and the gear housing is rotatably arranged in the slot of the auxiliary frame seat.

[0012] Furthermore, the front and rear side walls of the gear housing are both provided with through openings, the inner diameter of the front wall through opening should be compatible with the maximum outer diameter of the planetary carrier, and the inner diameter of the rear wall through opening of the gear housing should be compatible with the inner diameter of the perforation of the sun gear tube.

[0013] Furthermore, the inner wall of the sun gear tube is provided with a forward and reverse bidirectional scraper, and the extension length of the bottom end of the scraper will not exceed the outer diameter of the cable.

[0014] Furthermore, the detection assembly also includes a positioning rod, and the left and right sides of the assembly ring are equipped with positioning rods, and the assembly ring is installed on the auxiliary frame seat through the positioning rods.

[0015] Furthermore, the take-up roller is configured as a multi-section assembly, and a hatch is detachably mounted on the top of the take-up box. The take-up box is also equipped with a controller, and a driving device capable of rotating the take-up roller is mounted on the outside of the take-up box.

[0016] Technical effects and advantages of the present invention: The present invention uses a reversing component, a swing component, a speed-up component, a detection component and a marking component in coordination, which is conducive to the left and right plane gears to rotate toward or away from each other, that is, the rotation directions of the two are opposite, so that the left and right plane gears can alternately drive the rear rack, so that the entire swing component can swing back and forth in the left and right directions. On the one hand, the slider carries the wire tube to move back and forth in the slide groove on the front wall of the take-up box, so that the guided cable can be orderly reeled up on the surface of the take-up roller. On the other hand, the front rack that reciprocates left and right can drive the gear housing, and after the planetary gear rotating on a fixed axis reduces the torque, it drives the sun gear tube, so that the sun gear tube can spin at high speed in the center of the gear housing, that is, reduce the torque and increase the speed. The rotating sun gear tube can rely on its internal The scraper installed on the wall cleans the surface of the cable passing through to remove sludge or other impurities attached to the outer wall of the cable. When the cracked cable passes into the center of the elastic annular air tube filled with constant pressure gas in the inner cavity, the contact layer between the elastic annular air tube and the cable will be compressed and embedded in it along the crack. The gas volume increases, and the air pressure decreases, so that the air pressure detected by the air pressure sensor at this time is lower than the preset standard pressure threshold. It is determined that there is a crack on the cable surface here, and the telescopic end of the electric push rod drives the U-shaped rod and the color marking block to move downward until the color marking block presses the cable surface on the front and rear sides of the elastic annular air tube to mark the damaged section of the cable, so that subsequent personnel can locate the specific rupture position in a timely and accurate manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of partial disassembly of the overall structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the connection structure of the take-up box, the take-up roller, the reversing assembly, the main frame beam and the swing assembly of the present invention.

[0020] Figure 4 It is a schematic diagram of the connection structure of the take-up roller, the reversing assembly and the swing assembly of the present invention.

[0021] Figure 5 It is a schematic diagram from the front side of the connection structure of the auxiliary frame, the front rack, the speed-up component and the detection component of the present invention.

[0022] Figure 6 It is a schematic diagram from the rear side of the connection structure of the auxiliary frame, front rack, speed-up assembly and detection assembly of the present invention.

[0023] Figure 7 It is a schematic diagram of a top view of the connection structure of the auxiliary frame, the front rack, the speed-up assembly and the detection assembly of the present invention.

[0024] Figure 8It is a schematic diagram of the connection structure between the auxiliary frame and the speed-up assembly of the present invention.

[0025] Fig. 9 It is a schematic diagram of the sun gear tube structure of the present invention.

[0026] Fig.10 It is a schematic diagram of the connection structure between the auxiliary frame and the marking component of the present invention.

[0027] The reference numerals are: 1, take-up box; 2, take-up roller; 3, reversing assembly; 301, transmission shaft; 302, bevel gear; 303, plane gear; 304, U-shaped frame; 4, bearing frame; 401, main frame beam; 402, auxiliary frame seat; 5, swing assembly; 501, front rack; 502, rear rack; 503, connecting rod; 504, slider; 505, wire tube; 6, speed-up assembly; 601, Gear housing; 602, inner gear ring; 603, planetary gear; 604, sun gear tube; 605, rotating shaft; 606, planetary carrier; 7, detection component; 701, assembly ring; 702, elastic annular air pipe; 703, air pressure sensor; 704, pressure regulating air pump; 705, positioning rod; 8, marking component; 801, electric push rod; 802, U-shaped rod; 803, color marking block; 804, fixing bracket. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The cable detection device involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0029] Reference Figure 1-10 The present invention provides a cable detection device, including a wire take-up box 1, wherein a wire take-up cabin and transmission cabins located on the left and right sides of the wire take-up cabin are arranged in the inner cavity of the wire take-up box 1, a wire take-up roller 2 is rotatably arranged in the wire take-up cabin, and the two ends of the wire take-up roller 2 extend into the left and right transmission cavities respectively and are transmission connected to a reversing assembly 3 arranged therein, a bearing frame 4 and a swing assembly 5 slidably arranged above the bearing frame 4 are installed on the front side of the wire take-up box 1, and a speed-up assembly 6, a detection assembly 7 and a marking assembly 8 located directly in front of the wire take-up box 1 are also installed on the bearing frame 4 to respectively perform cleaning operations, detection operations and marking operations on the cable.

[0030] In this embodiment, it should be specifically explained that the take-up roller 2 can be set as a multi-section assembly type, and the top of the take-up box 1 is detachably equipped with a hatch cover, so as to open the hatch and take out the cables wrapped around the surface of the take-up roller 2, so that subsequent personnel can accurately locate the specific rupture position and take corresponding remedial measures; The wire receiving box 1 may also be equipped with a controller for receiving the determination information output by the air pressure sensor 703 and outputting control instructions to the actuator through analysis and processing; A driving device capable of rotating the wire take-up roller 2 is installed on the outside of the wire take-up box 1. The driving device can be selected as a motor. The output shaft of the motor drives the wire take-up roller 2 connected thereto to rotate through a coupling. This is a conventional application method for those skilled in the art and will not be described in detail in this embodiment.

[0031] Reference Figure 2-4 The reversing assembly 3 includes a transmission shaft 301, a bevel gear 302, a plane gear 303 and a U-shaped frame 304, wherein the transmission shaft 301 is rotatably sleeved on the U-shaped frame 304, and the ends of the transmission shaft 301 close to the take-up roller 2 are equipped with bevel gears 302, and the two bevel gears 302 on the same side are vertically meshed, and the end of the transmission shaft 301 away from the take-up roller 2 is equipped with a plane gear 303, and the take-up roller 2 can carry the bevel gears 302 installed on the left and right ends thereof to rotate coaxially, and transmit the torque force to the two transmission shafts 301 through the left and right two groups of vertically meshed bevel gears 302, so that the plane gears 303 sleeved on the front ends of the left and right transmission shafts 301 can rotate toward or away from each other, that is, the two rotation directions are opposite; The end faces of the planar gears 303 are both provided with toothed segments and toothless segments, wherein when the toothed segment of the end face of one planar gear 303 enters the rear rack 502 to mesh with it for transmission, the toothed segment of the other planar gear 303 is withdrawn and converted into a toothless segment to enter the rear rack 502, and vice versa, that is, the left and right planar gears 303 can alternately transmit the rear rack 502 in a periodic manner, so that the entire swing assembly 5 can swing back and forth in the left and right directions; The swing assembly 5 includes a front rack 501, a rear rack 502, a connecting rod 503, a slider 504 and a wire tube 505, wherein the front rack 501 and the rear rack 502 are arranged front to back and are slidably arranged above the main frame beam 401, and the front rack 501 and the rear rack 502 are fixedly connected by the connecting rod 503, the top of the connecting rod 503 is assembled with the slider 504 slidably arranged in the slide groove of the front wall of the wire take-up box 1, and the middle part of the slider 504 is equipped with the wire tube 505, so that the entire swing assembly 5 can move as a whole above the main frame beam 401, and the slider 504 carries the wire tube 505 to move back and forth in the slide groove of the front wall of the wire take-up box 1, so that the guided cable can be orderly wound on the surface of the wire take-up roller 2 to avoid local excessive winding.

[0032] In this embodiment, it should be specifically explained that the bearing frame 4 includes a main frame beam 401 and an auxiliary frame seat 402 installed on the front side thereof, wherein the main frame beam 401 is fixedly connected to the front wall of the take-up box 1 to carry the swing assembly 5, the speed-up assembly 6, the detection assembly 7 and the marking assembly 8 to ensure their stable operation; A space is reserved between the front end of the wire tube 505 and the detection component 7 for the cable to bend and move, avoiding motion interference, so that the wire tube 505 can still maintain the normal transmission capacity of the cable when moving left and right.

[0033] Reference Figure 5-10 The speed-up assembly 6 includes a gear housing 601, an inner gear ring 602, planetary gears 603 and a sun gear tube 604, wherein the gear housing 601 is rotatably arranged in a slot of the auxiliary frame seat 402, and the inner gear ring 602 is assembled in the gear housing 601, a sun gear tube 604 is rotatably arranged at the center of the inner gear ring 602, and planetary gears 603 are circumferentially distributed between the inner gear ring 602 and the sun gear tube 604, and the planetary gears 603 are meshed with the inner and outer layers of the sun gear tube 604 and the inner gear ring 602 at the same time, and the planetary gears 603 are arranged with a fixed axis; The detection assembly 7 includes an assembly ring 701, an elastic annular air tube 702, an air pressure sensor 703 and a pressure regulating air pump 704, wherein the assembly ring 701 is aligned with the rear wall opening of the gear housing 601, the interior of the assembly ring 701 is equipped with an elastic annular air tube 702 that can be wrapped around the surface of the cable, the air pressure sensor 703 and the pressure regulating air pump 704 are assembled on the outer wall of the assembly ring 701, and the air pressure detection end of the air pressure sensor 703 and the air supply end of the pressure regulating air pump 704 are respectively connected to each other. The assembly ring 701 extends into the elastic annular air tube 702, which is filled with constant pressure gas. When the cable with cracks passes through the center of the elastic annular air tube 702 filled with constant pressure gas, the contact layer between the elastic annular air tube 702 and the cable will be pressed and embedded along the crack. The gas volume increases, and the air pressure decreases, so that the air pressure detected by the air pressure sensor 703 at this time is lower than the preset standard pressure threshold, and it is determined that there is a crack on the cable surface here. The marking assembly 8 includes an electric push rod 801, a U-shaped rod 802, a color marking block 803 and a fixing frame 804, wherein the electric push rod 801 is assembled on the top of the fixing frame 804, and the electric push rod 801 is installed on the auxiliary frame seat 402 through the fixing frame 804. The telescopic end of the electric push rod 801 is equipped with a U-shaped rod 802, and the bottom end of the U-shaped rod 802 is detachably installed with a color marking block 803. The telescopic end of the electric push rod 801 drives the U-shaped rod 802 and the color marking block 803 to move downward until the color marking block 803 presses the cable surface on the front and rear sides of the elastic annular air tube 702 to mark the damaged section of the cable, so that subsequent personnel can locate the specific rupture position in a timely and accurate manner.

[0034] In this embodiment, it should be specifically explained that the speed-up assembly 6 also includes a rotating shaft 605 and a planetary carrier 606, wherein the rotating shaft 605 is fixedly connected to the auxiliary frame seat 402, and the planetary gear 603 is rotatably sleeved on the end of the rotating shaft 605, so that the planetary gear 603 can only spin along the surface of the rotating shaft 605 to which it is sleeved, that is, fixed-axis rotation, and a planetary carrier 606 is installed between the rotating shafts 605, so that the sun gear tube 604 can be restricted to the center of the gear housing 601, and can only spin, avoiding deviation or separation; The rotating connection part between the gear housing 601 and the slot of the auxiliary frame seat 402 should be provided with a channel for the discharge of the cleaning material to prevent the dirt from accumulating in the gear housing 601; The front and rear side walls of the gear housing 601 are both provided with through openings, and the inner diameter of the through opening on the front wall should be adapted to the maximum outer diameter of the planet carrier 606, so that the gear housing 601 can limit the planetary gear 603 while not being hindered by the planet carrier 606 when rotating. The inner diameter of the through opening on the rear wall of the gear housing 601 should be adapted to the inner diameter of the perforation of the sun gear tube 604, so that the sun gear tube 604 can be stably limited between the gear housing 601 and the planet carrier 606 while retaining the rotation property; The inner wall of the sun gear tube 604 is provided with a forward and reverse bidirectional scraper, and the extension length of the bottom end of the scraper will not exceed the outer diameter of the cable. The rotating sun gear tube 604 can clean the surface of the cable through the forward and reverse bidirectional scraper on its inner wall to remove the sludge or other impurities attached to the outer wall of the cable, creating favorable conditions for subsequent crack point detection; The detection assembly 7 further includes a positioning rod 705 . The left and right sides of the assembly collar 701 are both equipped with the positioning rod 705 . The assembly collar 701 is installed on the auxiliary frame seat 402 through the positioning rod 705 .

[0035] Working principle of the present invention: The driving device (motor) is started, and the output shaft of the motor drives the wire-taking roller 2 connected thereto to rotate through the coupling, and then the wire-taking roller 2 can carry the bevel gears 302 installed at its left and right ends to rotate coaxially, and transmit the torque to the two transmission shafts 301 through the left and right sets of vertically meshed bevel gears 302, so that the flat gears 303 sleeved at the front ends of the left and right transmission shafts 301 can rotate toward or away from each other, that is, the two rotation directions are opposite, when the toothed segment on the end face of one flat gear 303 enters the top of the rear rack 502 to mesh with it for transmission, the toothed segment of the other flat gear 303 withdraws and is converted into a toothless segment to enter the top of the rear rack 502, and vice versa, that is, the left and right flat gears 303 can alternately drive the rear rack 502, and present a periodicity, so that the entire swing assembly 5 can be in the left and right directions. The slider 504 carries the wire tube 505 to move back and forth in the slide groove of the front wall of the take-up box 1, on the one hand, so that the wired cable can be wound up on the surface of the take-up roller 2 in an orderly manner to avoid local excessive winding. On the other hand, the front rack 501 that moves back and forth left and right can drive the gear housing 601, so that the gear housing 601 can carry the inner gear ring 602 to rotate around the slot of the auxiliary frame seat 402, and drive the sun gear tube 604 after reducing the torque through the planetary gear 603 rotating on a fixed axis, so that the sun gear tube 604 can spin at high speed clockwise or counterclockwise in the center of the gear housing 601, that is, the process of reducing torque and increasing speed. The rotating sun gear tube 604 can clean the surface of the wired cable by means of the scrapers arranged in both positive and negative directions on its inner wall, so as to remove the sludge or other impurities attached to the outer wall of the cable, and create favorable conditions for the subsequent crack point detection. When the cable with cracks passes through the center of the elastic annular air tube 702 filled with constant pressure gas, the contact layer between the elastic annular air tube 702 and the cable will be pressed and embedded in it along the crack. Since the total amount remains unchanged, the gas volume increases, and the air pressure decreases, so that the air pressure detected by the air pressure sensor 703 at this time is lower than the preset standard pressure threshold (and the smaller the air pressure value, the larger the cable crack). It is determined that there is a crack on the cable surface here, and the air pressure sensor 703 outputs the pressure change determination information to the controller, and the controller receives the information. The voltage transformation judgment information is used to output a control instruction to the electric push rod 801, and the telescopic end of the electric push rod 801 is controlled to drive the U-shaped rod 802 and the color marking block 803 installed at the bottom end to move downward until the color marking block 803 presses the cable surface on the front and rear sides of the elastic annular air tube 702 to mark the damaged section of the cable, so that subsequent personnel can locate the specific rupture position in a timely and accurate manner. After the marking is completed, the electric push rod 801 drives the U-shaped rod 802 and the color marking block 803 to reset, waiting for the next round of marking operation; This reciprocating process is carried out to detect the entire cable section and mark the crack point. At the same time, the cable surface can be cleaned before testing and quickly stored after testing, which improves testing efficiency and convenience of use.

[0036] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or modifications within the technical scope disclosed by the present invention; according to the technical plan and its improved conception of the present invention, all of which should be included under the protection of the present invention.

Claims

1. A cable detection device, comprising a cable collection box (1), characterized in that: The inner cavity of the wire taking-up box (1) is provided with a wire taking-up cabin and a transmission cabin located on the left and right sides of the wire taking-up cabin. A wire taking-up roller (2) is rotatably arranged in the wire taking-up cabin, and the two ends of the wire taking-up roller (2) respectively extend into the left and right transmission cavities and are transmission-connected to a reversing assembly (3) arranged therein. A bearing frame (4) and a swing assembly (5) slidably arranged above the bearing frame (4) are installed on the front side of the wire taking-up box (1). A speed-up assembly (6), a detection assembly (7) and a marking assembly (8) located directly in front of the wire taking-up box (1) are also installed on the bearing frame (4) to respectively perform cleaning operations, detection operations and marking operations on the cable. The reversing assembly (3) comprises a plane gear (303), the left and right plane gears (303) can rotate towards or away from each other, the end faces of the plane gears (303) are both arranged with tooth segments and without tooth segments, and the left and right plane gears (303) can alternately transmit power to the swing assembly (5); the speed-up assembly (6) comprises a gear housing (601), an inner gear ring (602), planetary gears (603) and a sun gear tube (604), wherein the gear housing (601) is equipped with an inner gear ring (602), a sun gear tube (604) is centrally arranged to rotate on the inner gear ring (602), and planetary gears (603) are arranged circumferentially between the inner gear ring (602) and the sun gear tube (604), the planetary gears (603) are meshed with the inner and outer layers of the sun gear tube (604) and the inner gear ring (602), and the planetary gears (603) are arranged with a fixed axis; The detection component (7) comprises an assembly ring (701), an elastic annular air tube (702), an air pressure sensor (703) and a pressure regulating air pump (704), wherein the assembly ring (701) is aligned with the rear wall opening of the gear housing (601), the interior of the assembly ring (701) is equipped with an elastic annular air tube (702) wrapped around the surface of the cable, the air pressure sensor (703) and the pressure regulating air pump (704) are assembled on the outer wall of the assembly ring (701), and the air pressure detection end of the air pressure sensor (703) and the air supply end of the pressure regulating air pump (704) respectively pass through the assembly ring (701) and extend into the elastic annular air tube (702), and the elastic annular air tube (702) is filled with constant pressure gas.

2. A cable detection device according to claim 1, characterized in that: The reversing assembly (3) further comprises a transmission shaft (301), a bevel gear (302) and a U-shaped frame (304), wherein the transmission shaft (301) is rotatably sleeved on the U-shaped frame (304), the ends of the transmission shaft (301) close to the wire take-up roller (2) are both equipped with bevel gears (302), and the two bevel gears (302) on the same side are vertically meshed, and the end of the transmission shaft (301) away from the wire take-up roller (2) is equipped with a flat gear (303).

3. A cable detection device according to claim 1, characterized in that: The support frame (4) comprises a main frame beam (401) and an auxiliary frame seat (402) installed on the front side thereof, wherein the main frame beam (401) is fixedly connected to the front wall of the wire collection box (1) to support the swing component (5), the speed-up component (6), the detection component (7) and the marking component (8).

4. A cable detection device according to claim 3, characterized in that: The swing assembly (5) comprises a front rack (501), a rear rack (502), a connecting rod (503), a slider (504) and a wire tube (505), wherein the front rack (501) and the rear rack (502) are arranged in a front-to-back manner and are slidably arranged above the main frame beam (401), and the front rack (501) and the rear rack (502) are fixedly connected via a connecting rod (503), the top end of the connecting rod (503) is assembled with a slider (504) slidably arranged in a sliding groove on the front wall of the wire receiving box (1), and the middle part of the slider (504) is equipped with a wire tube (505).

5. A cable detection device according to claim 3, characterized in that: The marking assembly (8) comprises an electric push rod (801), a U-shaped rod (802), a color marking block (803) and a fixing frame (804), wherein the electric push rod (801) is mounted on the top of the fixing frame (804), the electric push rod (801) is mounted on the auxiliary frame seat (402) through the fixing frame (804), the telescopic end of the electric push rod (801) is equipped with the U-shaped rod (802), and the bottom end of the U-shaped rod (802) is detachably mounted with the color marking block (803).

6. A cable detection device according to claim 3, characterized in that: The speed-up assembly (6) further comprises a rotating shaft (605) and a planetary carrier (606), wherein the rotating shaft (605) is fixedly connected to the auxiliary frame seat (402), and the planetary gear (603) is rotatably sleeved on the end of the rotating shaft (605), and the planetary carrier (606) is installed between the rotating shafts (605), and a channel for discharging cleaning materials is provided at a rotatably connected portion between the gear housing (601) and the slot of the auxiliary frame seat (402), and the gear housing (601) is rotatably arranged in the slot of the auxiliary frame seat (402).

7. A cable detection device according to claim 1, characterized in that: The front and rear side walls of the gear housing (601) are both provided with through openings, the inner diameter of the front wall through opening should be compatible with the maximum outer diameter of the planet carrier (606), and the inner diameter of the rear wall through opening of the gear housing (601) should be compatible with the inner diameter of the perforation of the sun gear tube (604).

8. A cable detection device according to claim 1, characterized in that: The inner wall of the sun gear tube (604) is provided with a forward and reverse bidirectional scraper, and the extension length of the bottom end of the scraper will not exceed the outer diameter of the cable.

9. A cable detection device according to claim 3, characterized in that: The detection assembly (7) further comprises positioning rods (705), and the left and right sides of the assembly collar (701) are both equipped with positioning rods (705), and the assembly collar (701) is mounted on the auxiliary frame seat (402) via the positioning rods (705).

10. A cable detection device according to claim 1, characterized in that: The wire take-up roller (2) is configured as a multi-section assembly type, and a hatch cover is detachably mounted on the top of the wire take-up box (1). The wire take-up box (1) is also equipped with a controller, and a driving device capable of rotating the wire take-up roller (2) is mounted on the outside of the wire take-up box (1).

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